63144765 has 24 divisors (see below), whose sum is σ = 113506848. Its totient is φ = 33676560.

The previous prime is 63144743. The next prime is 63144793. The reversal of 63144765 is 56744136.

It is a happy number.

It is not a de Polignac number, because 63144765 - 2¹⁰ = 63143741 is a prime.

It is a super-2 number, since 2×63144765² = 7974522693810450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24771 + ... + 27200.

It is an arithmetic number, because the mean of its divisors is an integer number (4729452).

Almost surely, 2^63144765 is an apocalyptic number.

It is an amenable number.

63144765 is a deficient number, since it is larger than the sum of its proper divisors (50362083).

63144765 is an equidigital number, since it uses as much as digits as its factorization.

63144765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51991 (or 51979 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 63144765 is about 7946.3680382927. The cubic root of 63144765 is about 398.2102644769.

The spelling of 63144765 in words is "sixty-three million, one hundred forty-four thousand, seven hundred sixty-five".